Trusty Wikipedia defines deus ex machina as "a seemingly inextricable problem is suddenly and abruptly solved with the contrived and unexpected intervention of some new character, ability, or object".
And there was no sudden or unexpected intervention in the form of some new character, ability, or object. Throughout the miniseries, the fact that the children formed a link to the 4-5-6 was established, as was the fact that the British government had been studying it. It was established earlier in the miniseries that the mental link could be used to kill a man; that such a "killing signal" could be used against the 4-5-6 is a perfectly logical extrapolation from that.
That's not
deus ex machina. That's Chekov's Gun.
That the silly signal could be turned on the 456 to destroy it with some typical twiddling of machinery and some manufactured tragedy of killing a child we'd not heard of before at the end is as much of a DEM as anything. It's been a while since I've seen it (in between POTD and WOM, so could be about a year now), so I'm pretty sketchy on the facts, but as I recall on the last day some old sod who was there back when the 456 took the ten kids last time is asked by Jack if the signal could be used, says no, then goes "well maybe...", then the ending. It's hardly a logical extrapolation from existing established story elements, and the 456 would be bloody stupid to leave an obvious (as it would be from their point of view) weakness like that wide open.
That's Chek
hov's Gun by the way, not Chekov's. I didn't recall that the signal could kill a man being mentioned, but even so, the idea that it could magically be turned back on the 456 is outright daft. A magical solution that makes no sense but solves everything that's rolled out at the end is a deus ex machina.
Also, I've not seen anyone reply to the big flaw in the main plot; that the 456 use the children as drugs. As if there's a chemical in children but not in adults, and that they can't synthesize it so rock up at earth and bother us for kids. That's rubbish.
No more responses from anyone as to the quality of CoE's resolution? Or did I win the argument
I think the fact that you're trying to "win" the argument instead of convince other people is a bit of a reason not to bother arguing. I think there was a decent amount of setup and pretty significant consequences. As far as solutions go, I found it pretty powerful and satisfying at the same time.
It's true that people like different things, and I'm not arguing against people liking what they do. Trek V is probably my favourite of the original crew films, so I know what it's like to be a big fan of something that's not that popular or often has people claiming plot holes. But issues such as whether the ending is a DEM or whether the plot makes sense aren't subjective; it's either true or it's not. Whenever criticism of RTD comes up, even those who acknowledge his series finales are absurd and more about spectacle and making the audience pull out the crying towel than telling any sort of logical satisfying story tend to point out his two supposed big achievements: Midnight and Children of Earth. I can hardly recall Midnight and won't get around to rewatching it for some time, but the idea that CoE is a work of unquestionable genius certainly doesn't hold for me. Where better to discuss that than in a thread called "Torchwood Sucks"?
I also hope you'll note I don't try and be disrespectful or belittling while arguing my opinions on TV shows, and don't make it personal. Which can't be said of everyone else. Mr Mod Guv Sir

.
She's a chav. Anyone who's actually from Britain would tell you that. But then, that wasn't what I was getting at.
I wouldn't say she's a chav. She didn't act at all like a chav, for one thing she worked and didn't hang around on street corners getting pissed and intimidating people.
There's many levels of chavness though. She might not be Burberried and blinged up while prattling on about shit-hop being "wicked yeah blud innit", but she is a bit chavvy. Where's
Dimesdan got to? Rose Tyler being a chav used to be the one thing we agreed on.
It won't matter Bob, Bones is set in his ways he isn't going to change.[...]
Because I think Rose is a chav I'm some sort of stick in the mud? I'm not an upper class public school boy; I come from a fairly grotty town, and know chavs when I see them. Of course, when I was much younger we used to call them townies.
No one's effectively countered them, so it is as simple as that in a sense.
I maintain it's a flawed plot with a DEM ending, and no one's been able to prove otherwise.


Bravissimo
Thanks.
Anyone who says Rose is a chav is just a Daily Mail narrow minded reader who votes Tory and believes the good old times were the old testament era from The Bible. No grasp on reality basically
Who's rolling out the stereotypes now?

to you.
I maintain it's a flawed plot with a DEM ending, and no one's been able to prove otherwise.
Your still to prove your point so I go with the classic school yard ruling of theres more of us than you
Argumentum ad populum is a logical fallacy. And there are other places on the net where if you turned up and said CoE was a terrific piece of television, you'd be in the minority.